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High Strength/Machine Parts - Ni-Free alloyed steel powder

Materials for high strength/ wear resistant parts, including Cr type, Ni type, and other composition systems. Fully alloyed steel powder is used with the Cr type and other composition systems; partially alloyed steel powder is used with the Ni type.

Ni-Free alloyed steel powder

¡¡¡ö Characteristic of JIP FM600

(1) This shows mechanical properties equivalent to 4%Ni alloyed steel powder when sintered with conventional mesh belt sintering furnaces.
(2) It shows a tool chip wear rate only 1/5 times that of 4%Ni alloyed steel powder.

Test sample
FM600 : 4²Ñ°¿´¡£¨0.45²Ñ´Ç£©-2%°ä³Ü-0.8%³Ò°ù+0.5%³¢³Ü²ú(±á¶Ù³Ý)
4%Ni : SIGMALOY415S-0.6%Gr+0.8%Lub(ZnSt)
Compacting : 490¡¢588¡¢686²Ñ±Ê²¹
Sintering : Mesh belt furnace (1130¡æ¡Á10min, Endothermic gas)

Turning test condition
Turning tool chip : Cermet
Feed : 0.1mm/rev without coolant
Turning speed : 200m/min
Depth of cut : 0.5mm

¡ö Compressibility ¡ö Tensile strength
Compressibility Tensile strength
¡ö Hardness ¡ö Tool chip wear
Hardness Tool chip wear


¡¡¡öCharacteristic of JIP FM1000

(1) This shows mechanical properties equivalent to 4%Ni alloyed steel powder when sintered with conventional mesh belt sintering furnace then heat-treated.
(2) It shows a tool chip wear rate only 1/5 times that of 4%Ni alloyed steel powder.

Test sample
FM1000 : 4²Ñ°¿´¡£¨0.45²Ñ´Ç£©-1%°ä³Ü-0.5%³Ò°ù+0.5%³¢³Ü²ú(±á¶Ù³Ý)
4%Ni : SIGMALOY415S-0.3%Gr+0.8%Lub(ZnSt)
Compacting : 490¡¢588¡¢686²Ñ±Ê²¹
Sintering : mesh belt furnace (1130¡æ¡Á10min, Endothermic gas)
Heat treatment : Carburizing 900¡æ¡Á60min C.P. 0.8%
Quenching into 60¡æ oil
Tempering 180¡æ¡Á60min

¡ö Tensile strength ¡ö Hardness
Tensile strength Hardness
¡ö FM1000 shows homogeneous tempered martensite structure
FM1000 shows homogeneous tempered martensite structure

¡¡¡öCharacteristic of FM1000S

(1) Tensile strength and fatigue strengths: superior to there of the conventional 4%Ni alloyed steel powder(4%Ni) when sintered with conventional mesh belt furnace.
(2) Toughness: equivalent to that of 4%Ni.
(3) Pore structure in sintered components: much finer than that of 4%Ni, leading to the excellent mechanical properties.

Test sample
FM1000S : SIGMALOY4MO(0.4%Mo) - 2%Cu - 0.3%Gr. + 0.5%Lub(HDX)
4%Ni : SIGMALOY415S ¨C 0.3%Gr. + 0.8%Lub(ZnSt)
Compacting : 490¡¢588¡¢686²Ñ±Ê²¹ (5¡¢ 6¡¢ 7 t/cm2)
Sintering : (1130¡æ¡¢ 10min, Endothermic gas)
Heat treatment : ³¦²¹°ù²ú³Ü°ù¾±³ú¾±²Ô²µ¡¡900¡æ¡Á60³¾¾±²Ô¡¡°ä±Ê0.8%
Quenching into 60¡æ oil
Tempering 180¡æ¡Á60min

¡ö Tensile strength ¡ö Rotating bending fatigue strength
Tensile strength Hardness
¡ö Toughness ¡ö Pore structure of sintered components
Tensile strength Hardness

¡¡¡ö Characteristic of JIP FM1300

£¨1£© This shows mechanical properties equivalent to 4%Ni alloyed steel powder when sintered with high temperature then heat-treated.
£¨2£© The base steel powder is Mo-hybrid alloyed steel powder ¡°AH4515¡± (0.45% prealloy+0.15% diffusion bonded) that shows excellent sintering performance.
£¨3£© It shows higher rolling contact fatigue strength and excellent wear resistance compared with 4%Ni alloyed steel powder.

Test sample
FM1300 : AH4515(0.6%Mo)-0.5%Gr+0.5%Lub(HDX)
4%Ni : SIGMALOY415S-0.3%Gr+0.6%Lub(EBS)
Green density : 6.8, 7.0, 7.2Mg/m3
Sintering : 1250¡æ¡Á60min N2-10%H2 gas
Heat treatment : Carburizing 900¡æ¡Á60min, C.P. 0.8%
Quenching into 60¡æ, Oil tempering 180¡æ¡Á60min

Wear test (Ogoshi-method)
Breaking load : 12.6kgf
Friction velocity : 4.21m/sec
Dropping oil : DEXRON ¢ó¡¡1 drop/sec

¡öTensile strength ¡ö Hardness
Tensile strength Hardness
¡ö Rolling contact fatigue strength ¡ö Wear resistance
Rolling contact fatigue strength Wear resistance